<template>
  <div class="login-container">
    <!-- 标题 -->
    <van-nav-bar title="登录" class="page-nav-bar">
      <van-icon slot="left" name="cross" @click="$router.back()"></van-icon>
    </van-nav-bar>
    <!-- //form表单 -->
    <van-form @submit="onSubmit" ref="loginForm">
      <van-field
        v-model="user.mobile"
        name="mobile"
        placeholder="请输入手机号"
        :rules="userFormRules.mobile"
      >
        <i slot="left-icon" class="iconfont1 heima-shouji"></i>
      </van-field>
      <van-field
        v-model="user.code"
        name="code"
        placeholder="请输入验证码"
        :rules="userFormRules.code"
      >
        <i slot="left-icon" class="iconfont1 heima-yanzhengma"></i>
        <template #button>
          <van-count-down
            v-if="isCountDownShow"
            slot="button"
            :time="1000 * 5"
            format="ss s"
            @finish="isCountDownShow = false"
          />
          <van-button
            class="send-sms-btn"
            round
            size="mini"
            type="default"
            native-type="button"
            @click="onSend"
            v-else
            >发送验证码</van-button
          >
        </template>
      </van-field>
      <div class="login-btn-wrap">
        <van-button
          class="login-btn"
          round
          block
          type="info"
          native-type="submit"
          >登录</van-button
        >
      </div>
    </van-form>
  </div>
</template>
<script>
import { loginAPI, getCodeApi } from '../../api/index'
export default {
  name: 'LoginPage',
  components: {},
  props: {},
  data () {
    return {
      isCountDownShow: false,
      user: {
        mobile: '',
        code: ''
      },
      userFormRules: {
        mobile: [{
          required: true,
          message: '手机号不能为空'
        }, {
          pattern: /^1[3|5|7|8]\d{9}$/,
          message: '手机号格式错误'
        }],
        code: [{
          required: true,
          message: '验证码不能为空'
        }, {
          pattern: /^\d{6}$/,
          message: '验证码格式错误'
        }]
      }

    }
  },
  computed: {},
  watch: {},
  created () {},
  mounted () {},
  methods: {
    async onSubmit () {
      this.$toast.loading({
        message: '登录中...',
        forbidClick: true, // 禁用背景点击
        duration: 0 // 持续时间，默认 2000，0 表示持续展示不关闭
      })
      try {
        const res = await loginAPI(this.user)
        this.$toast.success('登录成功')
        this.$store.commit('setUser', res.data.data)
        // 登录成功，跳转回原来页面
        this.$router.back()
      } catch (err) {
        console.dir(err)
        if (err.response && err.response.status === 4000) {
          console.log('手机号或者密码错误', err)
          this.$toast.fail('手机号或验证码错误')
        }
      }
    },
    async onSend () {
      try {
        await this.$refs.loginForm.validate('mobile')
      } catch (err) {
        return console.log('验证失败', err)
      }
      this.isCountDownShow = true
      try {
        await getCodeApi(this.user.mobile)
        this.$toast('发送成功')
      } catch (err) {
        this.isCountDownShow = false
        if (err.response.status === 429) {
          this.$toast('发送太频繁了，请稍后重试')
        } else {
          this.$toast('发送失败，请稍后重试')
        }
      }
    }
  }
}
</script>
<style scoped lang="less">
.login-container {
  .toutiao {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 152px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}
.van-icon {
  color: #fff;
}

</style>
